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M65KA512AB датащи(PDF) 28 Page - STMicroelectronics |
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M65KA512AB датащи(HTML) 28 Page - STMicroelectronics |
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28 / 55 page ![]() DC and ac parameters M65KA512AB 28/55 Table 12. AC characteristics 1 Symbol Alt. Parameter M65KA512AB M65KA512AB Unit Min. Max. tAC Access Time from clock CAS Latency=3 - 6 ns CAS Latency=2 - 8 ns tAS (1) 1. If tT is greater than 0.5 ns, (tT− 0.5) or ((tR + tF)/2 − 0.5) should be added. Address Setup Time 1.9 - ns tAH (1) Address Hold Time 0.9 - ns tCK Clock Cycle Time CAS Latency=3 7.5 - ns CAS Latency=2 15 - ns tCHW tCH Clock High Pulse Width 2.5 - ns tCLW tCL Clock Low Pulse Width 2.5 - ns tCKS (1) Clock Enable Setup Time 1.9 - ns tCKSP (1) Clock Enable Setup Time (Power-Down Exit) 1.9 - ns tCKH (1) Clock enable Hold Time 0.9 - ns tCS tCMS (1) Command Setup Time 1.9 - ns tCH tCMH (1) Command Hold Time 0.9 - ns tDS (1) Data-Input Setup Time 1.9 - ns tDH (1) Data-Input Hold Time 0.9 - ns tOH Data-out Hold Time 2 - ns tOLZ tLZ Clock to Data Output in Low-Z Time 0 - ns tOHZ tHZ Clock to Data Output in High-Z Time CAS Latency=3 0 6 ns CAS Latency=2 0 8 ns |
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